package br.edu.granbery.indianostore.filter;

import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import br.edu.granbery.indianostore.dao.DaoFactory;

public class FilterHibernate implements Filter {

    public void destroy() {

    }

    public void doFilter(ServletRequest req, ServletResponse res, FilterChain chain) throws IOException, ServletException {

        HttpServletRequest request = (HttpServletRequest) req;
        HttpServletResponse response = (HttpServletResponse) res;

        HttpSession sessao = request.getSession(true);

        DaoFactory factory = new DaoFactory();

        if ((sessao != null) && (sessao.getAttribute("factory") != null)) {
            sessao.removeAttribute("factory");
        }

        sessao.setAttribute("factory", factory);
        chain.doFilter(request, response);

    }

    public void init(FilterConfig fConfig) throws ServletException {

    }

}
